Educated guess on 1/8th mile time!!!

[1987StangL268X]

With my current setup what is your educated guess on my 1/8 time? 308 w/ 520 lift cam, edelbrock perf rpm alum heads 2.02 1.60 valves, edelbrock air gap performer intake, roller rockers roller lifters, 625 vac secondary demon, c-4 trans w 3,000 stall, 3.73 rear gears with slicks in a 3,000 pd car. Please give me your opinion! My stock motor in the driveline setup went a best of 8.63. What do you think it will run????? Will post time ran next weekend!!

[1987StangL268X]

Replies please!

[USMC302]

What was your MPH and 60ft on the stock pass?

[1987StangL268X]

1.83 60 ft. and best mph was kinda down @ 77.99 but look at that 60 on a stock motor.....no mods!!

[1987StangL268X]

Come on guys!!!!what do you think????!!!!

[USMC302]

I'd say 7.9's or 8.0's. Good luck. i'm also going to the 1/8 track tonight, looking for 7.6 or better.

[Rev]

I'm gonna guess 8.2 sec. @ 85 mph.

Rev

[1987StangL268X]

Thanks guys! thats about what i was thinking. Not a bad setup for an 18 year old thats done all the work by hisself and paid for it all at the same time!!

[USMC302]

I went 7.601@92.2 last night, had to launch very low RPM to hook, crappy track. That converts to a 11.86@116. Got some more work to do but I think if I could have launched at 6000 like normal the 60ft's could have come down and times would have been better

[1987StangL268X]

You leave at 6000!!! must be a manual cause that would be one converter to stall 6000! And no wonder you blew the tires off why so high? And tell me your rearend/driveshaft/axles/mounts/etc isnt stock! lol i must baby mine

[USMC302]

Why not so high? I usually bogg down under 6k, the ET streets really grab for me. No, nothing in the rear is stock, only the T-5 is completely stock. I'm looking at getting my axle tubes welded next. I've launched at 6k many times and left hard and straight.

[1987StangL268X]

that seems a little ridiculous to me ...... but i also do not think that shifting a 302 thats not stroked above 5900 is realistic, thats just me. What do you shift @? 6600?

[USMC302]

I am stroked.....I shift at 6300.

[1987StangL268X]

How much do you pick up from shifting @ 5900 to shifting @ 6300???

[USMC302]

Never been on a dyno, but the 331's like to rev, ask Jeff! lol he knows about high revving, anyway, I decided to shift there because I can feel the torque die off there, it pulls hard up top till then.

[rwhite65]

Lots of guys launch at high revs like that. USMC is not out of the ordinary there.

[Dark_5.0]

Originally Posted by 1987StangL268X

that seems a little ridiculous to me ...... but i also do not think that shifting a 302 thats not stroked above 5900 is realistic, thats just me. What do you shift @? 6600?

I launch my 302 @6000rpms and shift at 6500 rpms. My cam is custom made for that power band and my heads flow enough to still pull past 6000.

All motors are different. You can build a motor to make power to 4,000 rpms or 15,000 rpms, you just need the right machining and parts.

[1987StangL268X]

Originally Posted by rwhite65

Lots of guys launch at high revs like that. USMC is not out of the ordinary there.

I guess thats the guys that can just buy a whole new motor when they shot three rods out of the side of the stock 2 bolt 302?? And it will be a little longer before i post info about what my car runs, they started leveling the new concrete and it didnt true up.....had to start ALL over! Its killing me waiting!!

[USMC302]

Negative, I do not have the money to throw away a motor. I invested in everything forged and top of the line internals so that my little stock block 331 will last as long as I can get it to. Besides what is the fun of racing if your not using the powerband? Want us to shift at 3000 to save the rods? I wouldn't need slicks anymore either, or axles for that matter, matter of fact, I could put everything back to stock and have my engine last foever! WOOHOO!

[bmxmon]

I shift my 302 at 6k, though I dont launch real high. (normally around 2-2500 when im street racing) I really didnt invest like those other guys to make sure my motor stays together that high, Im just to dumb to care. Plus if it does blow up, its a good excuse to build another motor!!! Though I am too poor to go through that again for awhile...